diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index f5588e3..df02727 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -13,6 +13,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v6
+      with:
+        submodules: recursive
 
     - name: Write version file
       run: sed -i 's/^version = "0\.1\.0"$/version = "${{ github.ref_name }}"/' pyproject.toml
diff --git a/MANIFEST.in b/MANIFEST.in
index 4b619bc..498c424 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,2 +1,4 @@
 include README.rst
 recursive-include vroom *
+prune vroom/.git
+recursive-exclude vroom .git .gitignore .gitmodules